Step Drill -

Supplier Details

Liaoning Longbaizhou Electromechanical Technology Co.,Ltd  

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Operational Address:
Old Industrial Park,Changtu,Tieling,Liaoning,China

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Step Drill

Step Drill
  • Step Drill
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Place of Origin:Changtu China (Mainland)

Brand Name:Yongshun & Yoson

Type:Steel Sheet Drill

Material:High Speed Steel

Use:Metal Drilling

Product Details


Packaging & Delivery

Packaging Detail: Wooded, Metal or ABS Box for whole set.
Delivery Detail: 45 days


1. CBN Profile Ground
2. Right Hand Cutting
3. HSS 4241, 4341, M2
4. Laser Marking
5. Triangle / Hex / Round Shanks

Most Popular HSS Step Drill Set

Always the 4.0-12.0 / 4.0-22.0 / 4.0-30.0 combination is the most popluar type in the market, especially for DIY tools promotion in supermarket. So for it, we suggest HSS-4241 type.



1. For drilling large holes in thin material and reboring existing holes

2. Steel sheet and stainless steel from 0.1 to 2 mm thick. 

3. Non-ferrous metals from 0.1 to 5 mm thick. 

4. Plastic up to 10 mm thick. 

5.  In all rotary and percussion drilling machines

6.  In machines for mechanical processing

7.  Only for rotary use. 


Cut. Dia.  Shank dia. Cut. L.    
4.0-12.0 6.0 80.0
4.0-20.0 8.0 67.0
6.0-30.0 10.0 98.0
9.0-36.0 12.0 86.0
7.0-32.5 6.0 96.0


Company Profile

The company was founded in 2010,and our registered capital is 500,000 rmb.The business scope includes Hydraulic, lubrication, heat exchange equipment。

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